Folding box



E. H. LUPTON FOLDING BOX Oct. 13, 1931.

Filed Aug. 7, 1930 2 Sheets-Sheet Get. 13, 1931'. E LUPTON 1,827,593

FOLDING BOX Filed Aug. '7, 1930 2 Sheets-Sheet 2 Patented Oct. 13, 231

PATENT OFFICE ELMER H. LUPTON, OF BALTIMORE, MARYLAND FOLDING :Box

Application filed August 7, 1930. Serial No. 473,609.

This invention relates to folding boxes made of paper stock and suitable for containing suits, coats, etc.

. The purpose of the invention is to provide a box with attached cover which can be quickly set up or knocked down, which will fold flat for shipment, and which will occupy a small space on the counter while the goods are being packed in the boxes.

A box of the type to which the present invention relates is illustrated in my Patent No. 1,718,204 dated January 18, 1929. The box in the patent referred to is formed from a single blank comprising portions which form the top and bottom of the box respectively. The bottom portion has two side flaps under which the corner pieces on the end of the bottom portion fold and the top portion is connected to the bottom portion by a hinge piece projecting from one of its side walls and by a flap on this hinge piece which is connected to a side flap on the bottom portion.

In the .present invention all of the flaps above mentioned, except the one on the top portion, are omitted, thus effecting a saving in material, and the corner pieces on the bottom portion, instead of folding under the slde flaps, as in said patent, fold under end flaps which are shorter than the side flaps.

In the accompanying drawings,

Fig. 1 is a plan view of the blank from which the box is made, the dotted lines showing the creases in the blank to permit of folding;

Fig. 2- is a perspective view of the box,

, folded for shipment;

F g. 3 is a section on the line 33 of Fig. 2; Fig. 4 is a perspective view of the box with the bottomv section set up for fillingand the top section folded;

ig. 5 is a similar view, unfolded and ready to bottom section;

. Fig. 6 is a transverse sectionthrough the closed box; and,

Flg. 7 is a perspective view of a corner of the'box, showing the manner in which the fciorner pieces fold under the adjacent end Referring to Fig. 1 of the drawings, A inbe closed over the with the top section dicates the blank from which the box is made,

as a whole, a indicates the portion of the blank which forms the bottom part or section of the box, and a indicates the portion of the blank which forms the top section of the box. These sections are connected by a part a which, in the completed box, forms a hingepiece. The bottom section a is creased longitudinally on parallel lines, as indicated at 1' and 2, so that the parts 3 and 4 may be 60 turned upwardly at right angles to the central part 5 of the section, to form side walls. This section of the blank is also creased transversely, near its ends, as shown at 6 and 7, so that the adjacent parts 8, 9 may be turned up- 6 wardly at right angles to the base 5 to form end walls. Flaps 14 and 15 project from the end walls 8 and 9, respectively, and these flaps may be folded over the end walls along lines 16 and 17. The corner pieces 18 of the bottom section, where the side and end walls meet, are creased diagonally, as shown at 19, so that each corner piece may fold inwardl against the inner side of the adjacent end wa when the box is set up.

The top section a of the blank is not provided with end flaps corresponding to the flaps 14 and 15 of the bottom section, but is provided with a side flap 10a. Thus, the top section has parallel longitudinal creases 1 and 2* to form the side walls 3 and 4, and it has the creases 6 and 7 near its ends to form the end walls 8 and 9*. The cornerpieces 18 and 18 are also creased diagonally, as shown at 19 and are adapted to fold inwardly against the adjacent side walls. The side wall 4a is creased at 12 to form a side flap 10". The hinge section a projects from the side wall 3 and can be bent at an angle to said side wall along a creased line 20. The hinge section a is of approximately the same width as the side walls of the box and it is connected to the side wall 4 of the bottom along a creased line 13.

In forming the box from the blank described. the end flaps 14 and 15 are folded inwardly against the end walls and secured thereto by stitches 24, the ends of each flap being free, so that the corner-pieces 18 may be folded under the ends of the flap and 10 when the end wall is pulled outwardly, its corner-pieces will be released from the flap and can unfold and lie flat, as shown in Fig. 2. The hinge piece a is folded along the crease line 13 and laid against the outer side of the side-wall 4, and is secured thereto by stitches 27, at or near the crease line 20.

The corner-pieces 18 of the top section each have one. fold secured to the side wall 3 by suitable means, such as stitches 28, and the flap 10 of the top section is folded inwardly over the side wall 4* and secured thereto by stitches 29. The manner in which the cornerpieces fold under the end flaps is shown in Fig. 7, wherein the corner-piece 18 is shown partly unfolded. By raising the free end of the flap 14 the corner-piece. can be released from the flap or folded beneath it against the end wall.

In Fig. 2 of the drawings the box is shown collapsed with the bottom section resting upon the top section. When the box is to be folded, it is laid in the form shown in Fig. 2, on a counter or suitable support, and the bottom section is set up, as shown in Fig. 4, by rocking the side walls 3 and 4 outwardly and raising the end walls 8 and 9 the end portions of the end flaps l4 and 15 being raised simultaneously to permit the cornerpieces to fold thereunder. When the box is filled, it is lifted and the top section is swung outwardly upon'the counter and its side wall 4 and end walls 8 and 9 are raised, as shown in Fig. 5, the corner-pieces between the end walls and the side wall 4 being tucked under the free ends of the flap 10 The top section is then swung over the bottom section a and the side wall 3 and also bending along the crease 1 In this operation, the corner-pieces 18 fold automatically against the side wall 3 of the top section. When the box is closed, the side and end walls of the top section fit closely around the corresponding walls of the bottom section, as shown in Fig. 6.

To knock the box down, it is merely necessary toswing the cover outwardly, as shown in Fig. 5, and press the end walls of the bottom part outwardly, thus releasing the corner-pieces from the flaps, and the side walls of the bottom part then fold inwardly. The side wall 4* of the top part is pressed outwardly and the end walls then fold inwardly.

What I claim is:

A folding box formed from a single blank, comprising top and bottom sections and a hinge piece connecting said sections, both sections having side and end walls and diagonalthe various flap-s folding over the adjacent corner pieces, the flaps being fastened at their central portions to their adjacent walls and the ends of the flaps being free.

In testimony whereof I afi'ix my signature.

ELMER H. LUPTON.

1y creased corner-pieces, the bottom section 

